body {
  width: 100vw;
  height: 100vh;
  /* background-color: #2C3E6C; */
  background-size: 100%;
  /* font-size: 30px; */
  overflow: auto;
}
#canvas {
  position: absolute;
  top: 60px; 
  left: 30px;
}

/* 顶部标题摘要样式 */
.top {
  display: flex;
  padding: 2% 6%;
}
.top .img-box {
  width: 350px;
  height: 400px;
}
.top .img-box img {
  width: 100%;
  height: 100%;
  vertical-align: middle;
}
.top article {
  position: relative;
  padding: 15% 10% 5% 13%;
  box-sizing: border-box;
  flex: 1;
}
.top article .title {
  color: gold;
  font-size: 30px;
  letter-spacing: 5px;
  text-shadow: 0px 1px 0px #999, 0px 2px 0px #888, 0px 3px 0px #777, 0px 4px 0px #666, 0px 5px 0px #555, 0px 6px 0px #444, 0px 7px 0px #333, 0px 8px 7px #001135;
  padding-bottom: 20px;
}
.top article .summary {
  text-align: justify;
  font-size: 20px;
  text-indent: 2em;
  font-family: LiSu;
}

.container {
  position: relative;
  /* padding: 3% 6%; */
  box-sizing: border-box;
}

.content {
  padding: 3% 6%;
  margin: auto;
  /* line-height: 60px; */
  font-size: 16px;
  text-indent: 2em;
  text-align: justify;
  letter-spacing: 10px;
  /* background-color: #f6f6f6; */
}

.content img {
  width: 100% !important;
}
/* 返回按钮样式 */
.container #back {
  position: fixed;
  bottom: 5%;
  right: 5%;
  width: 80px;
  z-index: 66;
}


/* 内容导航样式 */
.nav {
  padding: 3% 6%;
  display: flex;
  /* background-color: #f6f6f6; */
}
.nav h3 {
  position: relative;
  font-size: 20px;
  font-weight: normal;
}
.nav h3::before,
.nav h3::after {
  content: '';
  position: absolute;
  background-color: #000;
  width: 2px;
  bottom: 5px;
}
.nav h3::before {
  left: -10px;
  height: 16px;
}
.nav h3::after {
  left: -20px;
  height: 24px;
}
.nav p {
  text-align: right;
  flex: 1;
  border-bottom: 1px dotted #999;
}



/* 兼容1920大屏 */
@media screen and (min-width:1920px) {
  #canvas {
    top: 220px;
    left: 120px;
  }

  .top .img-box {
    width: 800px;
    height: 850px;
  }
  .img-box img {
    width: 100%;
  }
  .top article .title {
    font-size: 60px;
  }
  .top article .summary {
    font-size: 40px;
  }

  .content {
    font-size: 40px;
    letter-spacing: 30px;
    background-color: #f6f6f6;
  }
  .container #back {
    width: 160px;
  }


  /* 联系我们 */
  /* .contact {
    padding: 100px;
  }
  .contact h3 {
    padding-bottom: 40px;
    font-size: 60px;
  }
  .contact-box {
    padding: 40px;
    height: 200px;
  }
  .contact-box p {
    font-size: 40px;
  }
  .contact-box img {
    width: 40px;
    height: 50px;
    padding-right: 20px;
  } */

  /* 导航样式 */
  .nav h3 {
    font-size: 40px;
  }
  .nav h3::before,
  .nav h3::after {
    width: 4px;
  }
  .nav h3::before {
    height: 22px;
  }
  .nav h3::after {
    height: 40px;
  }
  .nav p {
    font-size: 40px;
    border-bottom: 2px dotted #999;
  }
}